: I just bumped into a site that has the absolute most information about polybutylene problems & solutions. Check out www.plumbing911.com to see what I'm talking about. I seem to be suffering a similar malady w.r.t. poly-b. My house is fully retrofitted with this material and most of the rhetoric on the net seems to be focused on the U.S. situation with little dialogue on what the status is in Canada. I recently "heard" that there is a class action suit forming in Canada, but am unable to source where that might originate, etc. Any info would be greatly appreciated.